I saw someone on Youtube saving her,
Yeah... I think I saw the same video. YTer with a pretty thick, Eastern European sounding accent, IIRC.
I think his conclusion was also that Meerna isn't meant to be saved and, like you said, there were some weird shenanigans involved to be able to "prevent" the death-scene. Technically it's probably more like "blocking" or even skipping the death-scene since story-wise she's clearly meant to die here.
